Winding machine



J. A. WARREN WINDING MACHINE Jan. 19, 1932.

Filed Jan. 21, 19'2"! 2 Sheets-Sheet l INVEHTOIZ 3' J 5 pl: 6? [1/ rm 'BY y ATTORNEY Jan. 19, 1932. J. A. WARREN 1,841,562

' WINDING MACHINE Filed Jan. 21, 1921' 2 Sheets-Sheet "2 f I 7 mvENToR lr/Z arrPn /3 44' v BY- HTTORHEY' Jah- Patented Jan. 19 1932 'VTUNITED srAras PATENT OFFICE JOSEPH, A. wuman, or :uomw: vaanon, nnw roax, ass'mxoa T0 H. a. van

DEVENTER INCORPORATED, 01' NEW YORK, N. Y., A CORPORATION OF NEW YORK MACHINE Application filed January 21, 1927. Serial No. 102,581.

This invention relates to winding machines, and more particularly to machines for windmg electrical condensers.

An object of this invention is to provide a machine which is adapted, to continuously superimpose a plurality of layers of flexible material;

Another object is to devise a process for manufacturing electrical condensers to insure a compact article.

Another object is to provide a winding machine having a single mandrel means for winding a plurality of sheets of material.

A further object is to provide a windingv machine having a single mandrel means for winding a plurality of sheets of material in conjunction with a plurality of guide and tension means.

Yet another object is to provide a winding machine in which the reels are automatically stopped when traction on the material is released.

Another object is to provide a winding machine having universally adjustable reels.

' A further. object'is to provide a winding machine in which is incorporated means for smoothing out the material in its passage.

To accomplish these and other important objects I provide a -machine for electrical condensers which comprise, a plurality of strips of metal foil such .as tin foil or other conducting material separated from each other by the interposition of one or more strips of dielectric material, such as cellulose acetate, paper or other material. The condensers after being wound are usually removed from the mandrel which is a part of the machine, but if. desired, the condensers may be wound on a core which may be an integral part of the condenser.

To make my invention more easily understood I have shown in the accompanying drawings a preferred embodiment. In these the same numerals refer to similar parts throughout the several views of which,

Fig. 1 is a side elevation of the machine with rollsof material in position and a partially completed condenser on the mandrel;

- Fig. 2 is a section on line IIII of Fig. 1

showing the details of a spindle and holder for a roll of material;

Fig. 3 is a plan view of the adjusting means for the spindle and holders shown in Fig. 2;

ig. 4 is a section on line IV-IV of Fig. 1 showing the details of the winding head;

Fig. 5 shows a cross section of the mandrel on which the condensers are wound;

Fig. 6 shows the locking bar for the mandrel;

Fig. 7 shows the mandrel in horizontalview; g

Fig. 8 is'a transverse section on, line VIII- VIII of Fi 1 showing the details of a guide roller and racket;

Fig. 9 is a front view of a guide roller and bracket;

Fig. 10 shows in diagrammatic form somewhit distorted, a partially wound condenser; an

Figs. 11 and 12 are diagrammatic showin s of completed condensers.

eferring to the drawings 1 designates the frame of the winding hea Carried by the standards of the frame are bearings 2 through which roject a spindle 3. The

nected' by a belt, not shown, to an electric motor controlled by a foot operated rheostat. The motor and its controls are not shown, and it will be understood that in lieu of a motor, any suitable source of power and method of control may be used.

Removably mounted on threaded nose 4 of spindle 3 is a work mandrel 7. Mandrel 7 is provided with a longitudinal channel 8. A locking bar 9 is nested in the channel 8 in such a manner that its exposed surface projects slightly outside of a circular line coin ciding with the circumference of the body of themandrel 7. Thelocking bar 9 is removably held in position by an attached ring 10 at one end and at the other end by the hole 11 in the shoulder of mandrel 7. There is a clearance between the locking bar 9 and channel 8 whose function will be discussed hereinafter.

spindle 3 has a t readed nose 4 on one end,

The magazine 12 has a door, not shown, held closed by latches, not shown, at 13 and 14. v

The roll holders or reels for the material used in making the condensers, of which reels there may be as many as re uired, together with their associated frict on strips and guide rolls, are all of substantially similar construction and one only will be decured to the end of the spindle 16 and outside of the magazine 12 is a hand wheel 23, by rotating which the spindle 16 is moved away from or towards the member 12 so that reels and the strips of material coming therefrom will have the desired relation to ,mandrel 7 on the winding head. Lock nut 24 on being tightened locks spindle 16 in the desired position after adjustment. A post 25 is mounted on the wall of magazine 12 so that its attached friction strips 26, which may be of cloth or other-suitale flexible material, will lie a ainst the circumferential surface of a roll 0 material on reel 15. The friction strips 26 partly surround the roll of material and its free end is weighted by a suitable weight 60. A guide roller 27 is mounted on a spindle 28 on ball bearings 29 in a bracket 30. Bracket 30 is adjustably mounted on the wall of magazine 12 and secured thereto by screws 31. Screws 32 are used to adjust bracket 30 to its proper angular relation to the wall of magazine 12. The function of screws 22 and 32 is to adjust the bracket 20 and 30 against which the screws thrust, so that all the reels and their associated guide rollers rotate on substantially parallelaxes;

A shelf 33 having a series of raised beads 34 divides the magazine into two compartments and supports the strips of material passin from the upper rolls during the threading of these strips through the machine. This shelf 33 also serves to receive any fragments which may fall from the strips, preventing such fragments from falling on the'strips of material passing from the lower set of reels and so being carried along into the condenser being wound.

Two series of staggered rods 35 and 36 supported respectively at one thereof on the wall of the magazine 12 form apertures which serve to impart a final smoothness to the strips of material as. they are drawn therethrough from the magazine onto the mandrel.

In describing the operation of the machine I will consider a condenser comprising two strips of metallic'foil 44 and four strips 43 of any suitable flexible dielectric, such as paper. Both foil and paper are of nearly equal widt and the construction is such that the'layers o foil are separated from each other by two of all the paper-strips are made to coincide as nearly as possible. The edges of the foil do not coincide with the edges of the paper, but, as shown in Figs. 11 and 12, one foil overlaps the paper at one edge and the other foil overlaps it at the other edge.

The disposition of the strips of paper 43 and the strips of foil 44 is clearly shown in Fig. 10, in which the condenser is shown in the act of being wound on a cylindrical from the'mandrel and usually flattened.

Rolls of metal foil 37 and 38 and rolls of paper 39, 40, 41 and 42 are placed on reels 15 and severally secured thereto by clamping rings 18 and lock nuts 19. The position of reels15 is adjusted by the members hereinbefore described so that the stripsof foil and paper coming from the various reels will issue from the magazine in their pro r relation. The friction strips 26 contacting with the peri heries of the several rolls, keep the strips 0 foil and of paper under the desired tension by their friction thereagainst as they 76 thicknesses of paper. In winding, the edges mandrel. After winding they are removed are drawn off the rolls and stop the rotation thereof when such drawing ofl ceases. Strips of paper 43 and foil 44 after being drawn from their'respective rolls on reels 15 contact with their several smoothing rollers 27 as shown in Figs. 1 and 8, and are drawn out of the magazine through the staggered apertures between the rods 35, 36.

As previously described the edges of the paper strips extend beyond the edges of the strips of foil as shown in Figs. 11 and 12. These are brought together against mandrel 7 as shown in Fig. 10 and secured thereto by inserting and locking the bar 9. The strips of paper thus lie in the slot 8 and underneath and partly around the locking bar 9. The free ends of the paper are then carried over the locking bar- 9 so as to form a loop and are so held until spindle 3 carrying with it mandrel '7 is caused to revolve by applying power to pulley 6. A sufficient number of turns of both foil and paper as shown by counting mechanism 55,

are wound onto mandrel 7 to make a condenser of the desired capacity. The machine is then stopped, the strips of foil severed by the operator, the arbor rotated a few turns again to give an overlay of paper, to prevent loosening of the compactly wound condenser, and then stopped. The strips of shape may be used.

paper are now severed. The mandrel is again dielectric and conductor type, in combinarotated to wind on the free ends of the paper tlon, a dust-proof magazine, material holdstrips and the machine is stopped, while the ing means mounted therein, means for adoutside strip of paper is secured by paste justing said material holding means in the or other suitable means to prevent vunwinddirection of the axisof the rotation thereof, ing. By withdrawing the locking bar 9 the means for angularly adjusting said holding wound condenser will be loosened on mandrel means with respect to a wall of said magazine 7 due to the particular relation of locking and unreeling and tensionin means adjustbar 9 to mandrel 7 as hereinbefore described, ably associated with said ho ding means.

and the wound condenser is easily removed. 2. In a machine for manufacturing elec- To secure a flat condenser it is merely necestrical condensers of the interleaved and consary to flatten out the wound element in a ductor type, in combination, adjustable masuitable manner. Practically all types of conterial holding means mounted therein and densers, commonly known as paper conmeans associated therewith for adjusting densers, including the Mansbridge type, may said holding means in the direction of the be wound on my machine, and I therefore do axis of rotation thereof, and also angularly not restrict myself to the winding of 0011- with respect to the rest of said machine, and densers of the exact type described. unreeling and tensioning means associated The machine can be modified'or enlarged there ith,

by having a greater or lesser number'of reels 3, In a machine adapted for manufacturand their associated members, thereby p ering electrical condensers of the interleaved mitting the winding of condensers having di l tric and conductor type, in com-binaany desired number of elements- Theref r tion, adjustable material holding means ro- I do not limit my invention to the particular tatably mounted therein, means for applying size and arangement shown. friction thereto, means associated therewith By the use of the above described machine for varying the plane of rotation thereof,

I have succeeded in accomplishing new and a d al th la f th axi of r tatio desirable results in the process of manutacadju t bl material tensioning and smoothturing interleaved sheet materials, and more ing means, fix d t i nin and dothing particularly in the preparation of compact means, d tatabl adju table wi di g electrical condensers, uniform in structure means f id at rial and capacity. 4. In a machine for manufacturing elec- The use of interchangeable nlflndlels p trical condensers of the interleaved dielectric mits any desired size of condenser to be made d conductor ty i c bi ati a, bi-

The use of the universally a j a g net, material holding means mounted thereing and tensioning means of my invention i comprising a. l, a i d1 ti g enables the above described COIIlpBlfl) filtln ember thereforcar -ied 3, of the cabicles to be easily prepared and formed, and, t, d means t dj t th angular mthe automatic stopping means pr v s any "tion of the member to the wall, and unreelirregularities therein. ing and tensioning means associated there- It should be understood that I do not limit ith, the invention to the winding of condensers 5 I a hi f manufacturing 1 using paper as the insulating m trical condensers of the interleaved dielectric dielectric, as the machine is capable Of lltllland conductor type in combination, 3, abidling any flexible in lating material WhlCh net, material holding means mounted therecan be obtained in the fOl'IIl Of IOllS and which in, matgrjal guiding and tensionjng means is suitable for the purpose. cooperating directly therewith, said guiding A round mandrel on which the condensers means i in a u ort j ting are Wound has been hown, i ly through a wall of the cabinet, and means to mandrels of flat shape or any desired suitable dj t th angular l tion of th u ort to the wall, and additional unreeling and Whil I h ve h rein disclosed a mach ne tensioning means associated therewith. which is 8. preferred embodiment Of my 1n- In testimony whereof I affix my signature, vention, it should be understood that vari- JOSEPH A, WARREN, ous modifications and changes in the arrange- 4 ment of the elements will suggest themselves to one skilled in the art, and I therefore intend to cover all such modifications as come within the spirit and scope of the appended claims Having thus described my invention, what I claim and desire to secure by Letters Patent is:

1. In a. machine adapted for manufacturing electrical condensers of the interleaved 

